Audio frequency compensation apparatus

Abstract

An audio compensating device comprises a left input end and a right input end which are respectively used for receiving a left channel sound input signal and a right channel sound input signal that are output by a player. The audio compensating device also comprises a left output end and a right output end which are respectively used for outputting the left channel sound input signal and the right channel sound input signal to an earphone. The audio compensating device further comprises a frequency compensating unit. The frequency compensating unit is coupled between the left and right input ends and the left and right output ends, is used for selecting the low range component of left and right channel sound input signals which are input from the left input end and the right input end, and crossly couples the low range component to the left and right channel sound input signals after amplifying and adjusting amplitude. The audio compensating device can improve the bass effect of soundoutput from the earphone and can be realized with a simple analog circuit.

Description

technical field [0001] The invention relates to an audio compensation device, in particular to an audio compensation device with low audio compensation. Background technique [0002] With the development of audio technology, audio players are used more and more in daily life. However, when the earphones with poor bass range response are used for playback, the low range components of the output sound of the audio player cannot be fully played on the earphones, resulting in poor bass effect of the player output sound. [0003] The publication date is November 6, 1996, and the Chinese patent with the publication number CN1135120 discloses a bass enhancement circuit. The circuit uses a low-pass filter to extract the low-range components below the low-range reproduction range of the earphone in the sound input signal, and generates the even-order harmonics of the above-mentioned low-range components through full-wave rectification, and extracts the second harmonic of the even-or...

AI Technical Summary

Problems solved by technology

However, the low-frequency components of the left and right channel sound input signals selected by the low-pass filter circuit of the bass enhancement circuit cannot be adjusted, so that the bass effect of the earphone output sound is not ideal.

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